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1.
to be so horny you will fuck anything that moves
dude stop humping my cat sorry man i have motion-sexness
by platipuss May 01, 2008
 
2.
When you have sex for too long or so often that you can still feel the movement long afterward.
Similar to the feeling of being rocked by waves for a long time then getting out of the water to find you can still feel the rocking.
back and forth... back and forth... I think I have motion sexness
by iBeeej June 22, 2011
 
3.
to be so horny you will fuck anything that moves
dude stop humping my cat sorry man i have motion-sexness
by platipuss May 01, 2008